He Jiankui, a Chinese scientist, blocks the effectiveness of his studies

Genetic – who acknowledged that his experiment was not approved by any official institution – He assured that the twins allegedly genetically engineered, Lulu and Nana, "were born healthy and happy" thanks to in vitro fertilization using genetic modification technology "to prevent them from infecting HIV",

However, he then announced that he was about to pause in his clinical trials "because of the controversy" that emerged.

"The whole uproar is due to a leak of my study reports "estimated to have come" before waiting"while the conference moderator, Robin Lovell-badge, confirmed that the organizers did not know about the experiment.

The scientist was "proud" to use the CRISPR / Cas9 gene-editing method and stressed that the study does not aim to rule out genetic diseases but to "give girls a natural ability" to resist the possible future of infection HIV,